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The Blood-Brain Barrier (BBB). This is actually a good website describing it : http://faculty.washington.edu/chudler/bbb.html
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Does the brain liver heart or kidney contain anatomical barriers that limit some drugs from gaining access?
Yes, the brain has anatomical barriers that limit the entry of drugs. The blood-brain barrier (BBB) is a highly selective barrier formed by specialized endothelial cells that line the blood vessels in the brain. It prevents the passage of certain substances, including many drugs, from entering the brain tissue. The liver also has its own protective barriers, such as the hepatocyte membrane, which regulates the absorption and distribution of drugs.
Which organ is most affected by drugs?
There are many kinds of drugs, which are designed to affect many different organs, but there is no doubt that the one organ which is most often affected by drugs is the brain.
What is the worst thing drugs can do to your brain?
The worst thing drugs can do is to cause death. Drugs can cause brain damage and many other health and social problems. Some may say that damage done by drugs is worse that death because it lasts the rest of your life.
What dangers does the blood-brain barrier protect the brain from?
The blood-brain barrier prevents various substances that could be poisonous to brain tissue (toxins), as well as many agents of infection, from crossing from the blood stream into the brain tissue.
What effects can drugs have?
there are many side effects that can occur when taking drugs. Different drugs will have different kinds of side effects. Many psychoactive drugs have differing effects based on the individual doing the drug's individual brain chemistry(which is as individual as is your fingerprint). Hallucinogens especially...
What ORGAN blocks entrance of many drugs because of a barrier similar to the blood brain barrier?
Spleen
How can you tell when someone is abusing drugs?
Drugs are chemicals. Messin with drugs messes with the chemicals in your brain, and changes the way you think/see things. Hard drugs etc. have a hard reaction on your brain. If you do too many drugs without balancing yourself with exercise/healthy food.. you can cause damage to your brain that takes way long to recover from. ^ Learned so from self experience.
Why can many addicts not stop using drugs by sheer force of will alone?
many experts now consider addiction to be a brain disease: a condition caused by persistent changes in brain structure and function. However, having this brain disease does not absolve the addict of responsibility for his or her behavior
How many chemicals are present in the human brain?
No set answer. Depends on the individual. There are chemicals that appear in the brain naturally, and then there are chemicals (drugs, medicines, toxins, etc.) that are put into the bloodstream from outside sources.
How many brain cells can you lose while doing drugs?
I really hope your not thinking on doing drugs because it is a very bad habit to get into and it can mess up your life. Think to your self... would god do drugs. If god would'nt do it , then you should'nt.
Can you sing a song from memory while high on drugs?
Depends on what drugs, but on many you should. In fact, on some drugs you can probably even sing songs you would never think you could remember. Still, depends on the kind of drug, the dose and your brain.
Can thirteen olds get brain tumors?
Yes, it is possible. It can even occur in children and infants. Brain tumors originally have been known to develop in teens from taking drugs, alcohol, or other medical related causes. Many people can get brain tumors. Anyone can, you can even get them when you are born. But brain tumors are very rare and not that many people can get it.
